* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 19.6px;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

.intro-section {
    max-width: 886px;
    margin: 0 auto 46.7px auto;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15.6px;
    box-shadow: 0 7.8px 31.2px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.intro-container {
    display: flex;
    gap: 23.3px;
    padding: 31.2px;
    align-items: flex-start;
}

.intro-photo {
    flex-shrink: 0;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}

.profile-img {
    width: 138.2px;
    height: 138.2px;
    border-radius: 50%;
    object-fit: cover;
    border: 3.9px solid rgba(102, 126, 234, 0.3);
    box-shadow: 0 7.8px 23.3px rgba(0, 0, 0, 0.15);
}

.intro-content {
    flex: 1;
    display: flex;
    gap: 23.3px;
    align-items: flex-start;
    position: relative;
}

.intro-bio {
    flex: 1;
    padding-left: 7.8px;
    padding-right: 300px;
    display: flex;
    flex-direction: column;
}

.intro-bio h1 {
    font-size: 2.618em;
    color: #2c3e50;
    margin-bottom: 15.6px;
    font-weight: bold;
}

.intro-bio p {
    font-size: 1.0em;
    line-height: 1.618;
    color: #4a5568;
    margin-bottom: 15.6px;
}

.social-links-box {
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 11.7px;
    padding: 10px 12px;
    position: absolute;
    right: 0;
    top: 0;
    width: 180px;
}

.social-links-box h3 {
    font-size: 1.1em;
    color: #2c3e50;
    margin-bottom: 15.6px;
    font-weight: bold;
    text-align: center;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.social-link {
    padding: 11.7px 15.6px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    text-decoration: none;
    border-radius: 19.5px;
    font-size: 0.9em;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    touch-action: manipulation;
}

.social-link:hover {
    transform: translateY(-1.9px);
    box-shadow: 0 3.9px 11.7px rgba(102, 126, 234, 0.3);
}

.support-section, .crypto-section {
    max-width: 886px;
    margin: 0 auto 31.2px auto;
}

.section-title {
    text-align: center;
    font-size: 1.472em;
    color: white;
    margin-bottom: 23.3px;
    font-weight: bold;
    text-shadow: 0 1.9px 3.9px rgba(0, 0, 0, 0.3);
}

.support-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 23.3px;
    padding: 0 15.6px;
    margin-bottom: 15.6px;
}

.support-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 11.7px;
    padding: 23.3px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5.9px 19.5px rgba(0, 0, 0, 0.12);
    text-align: center;
    min-height: 44px;
    touch-action: manipulation;
}

.support-card:hover {
    transform: translateY(-3.9px);
    box-shadow: 0 7.8px 24.4px rgba(0, 0, 0, 0.2);
}

.support-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 11.7px;
}

.support-icon {
    width: 78px;
    height: 78px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.support-icon-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.support-card h3 {
    font-size: 1.2em;
    color: #2c3e50;
    margin: 0;
    font-weight: bold;
    display: none; /* Hide the titles */
}

.support-card p {
    font-size: 0.9em;
    color: #666;
    margin: 0;
}

.container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 960px;
    margin: 0 auto;
    padding: 31.2px;
}

.card {
    background-color: transparent;
    width: 100%;
    height: 160px;
    aspect-ratio: 1.2 / 1;
    perspective: 1000px;
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
    position: relative;
    z-index: 1;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card.flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 11.7px;
    box-shadow: 0 5.9px 19.5px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 15.6px;
}

.card-front {
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    color: #333;
}

.card-back {
    background: linear-gradient(145deg, #2c3e50, #34495e);
    color: white;
    transform: rotateY(180deg);
}

.icon {
    width: 36px;
    height: 36px;
    margin-bottom: 6px;
    object-fit: contain;
}

.icon[src$=".png"] {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

h2 {
    font-size: 0.85em;
    margin-bottom: 6px;
    text-align: center;
}

.card-back p {
    font-family: 'Courier New', monospace;
    font-size: 0.6em;
    word-break: break-all;
    line-height: 1.2;
    background: rgba(255, 255, 255, 0.1);
    padding: 7.8px;
    border-radius: 5.9px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
    cursor: text;
}

.card:hover {
    transform: translateY(-2.9px);
    transition: transform 0.3s ease;
}

@media (max-width: 992px) {
    body {
        padding: 12.1px;
    }
    
    .intro-container {
        flex-direction: column;
        gap: 19.5px;
        padding: 23.3px;
        text-align: center;
        align-items: center;
    }
    
    .intro-photo {
        justify-content: center;
    }
    
    .profile-img {
        width: 117.4px;
        height: 117.4px;
        border-width: 3.0px;
    }
    
    .intro-bio {
        padding-left: 0;
        text-align: center;
    }
    
    .intro-bio h1 {
        font-size: 1.96em;
    }
    
    .intro-bio p {
        margin-bottom: 12.1px;
    }
    
    .support-container {
        gap: 15.6px;
        padding: 0 11.7px;
    }
    
    .support-card {
        padding: 19.5px;
    }
    
    .support-icon {
        width: 60.6px;
        height: 60.6px;
    }
    
    .section-title {
        font-size: 1.273em;
        margin-bottom: 19.5px;
    }
    
    .container {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        padding: 20px 10px;
        max-width: 800px;
    }
    
    .card {
        height: 140px;
    }
    
    .icon {
        width: 39.1px;
        height: 39.1px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 9.8px;
    }
    
    .intro-section {
        margin-bottom: 31.2px;
    }
    
    .intro-container {
        flex-direction: column;
        gap: 15.6px;
        padding: 19.5px;
        text-align: center;
        align-items: center;
    }
    
    .intro-content {
        flex-direction: column;
        gap: 15.6px;
        width: 100%;
        position: static;
    }
    
    .intro-photo {
        justify-content: center;
    }
    
    .profile-img {
        width: 97.9px;
        height: 97.9px;
        border-width: 2.4px;
    }
    
    .intro-bio {
        padding-left: 0;
        padding-right: 0;
        text-align: center;
        display: flex;
        flex-direction: column;
    }
    
    .intro-bio h1 {
        order: 1;
    }
    
    .intro-bio p:first-of-type {
        order: 2;
    }
    
    .intro-bio p:nth-of-type(2) {
        order: 4;
    }
    
    .intro-bio p:last-of-type {
        order: 5;
    }
    
    .social-links-box {
        position: static;
        min-width: auto;
        padding: 15.6px;
        width: 100%;
        order: 3;
        margin: 15.6px 0;
    }
    
    .social-links-box h3 {
        font-size: 1.0em;
        margin-bottom: 11.7px;
    }
    
    .intro-bio h1 {
        font-size: 1.764em;
        margin-bottom: 11.7px;
    }
    
    .intro-bio p {
        font-size: 0.882em;
        margin-bottom: 11.7px;
    }
    
    .social-links {
        flex-wrap: wrap;
        gap: 11.7px;
        margin-top: 15.6px;
    }
    
    .social-link {
        padding: 5.9px 11.7px;
        font-size: 0.833em;
        min-height: 44px;
    }
    
    .support-container {
        grid-template-columns: 1fr;
        gap: 15.6px;
        padding: 0 7.8px;
    }
    
    .support-card {
        padding: 15.6px;
        min-height: 88px;
    }
    
    .support-icon {
        width: 68.5px;
        height: 68.5px;
        overflow: hidden;
    }
    
    .support-icon-img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
    }
    
    .support-card h3 {
        font-size: 1.078em;
    }
    
    .support-card p {
        font-size: 0.833em;
    }
    
    .section-title {
        font-size: 1.176em;
        margin-bottom: 15.6px;
    }
    
    .container {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 15.6px 7.8px;
        max-width: 400px;
    }
    
    .card {
        height: 110px;
        min-height: 88px;
    }
    
    .icon {
        width: 28px;
        height: 28px;
        margin-bottom: 4px;
    }
    
    h2 {
        font-size: 0.75em;
        margin-bottom: 4px;
    }
    
    .card-back p {
        font-size: 0.55em;
        padding: 5.9px;
    }
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}